The article discusses methods of musculoskeletal rehabilitation, particularly the use of mechanotherapy with robotic manipulators. The functioning of manipulator control algorithms poses a complex technical challenge, requiring meticulous preparation and preliminary simulation modeling. The possibility of testing manipulator algorithms in musculoskeletal rehabilitation systems using motion capture data and Blender 3D simulation animation is explored. An algorithm for obtaining and processing information from virtual reality trackers for subsequent use in manipulator control systems has been developed. The algorithm addresses tasks such as tracker position determination on the human body, data validation, trajectory visualization, simulation modeling on a digital human body model, and necessary post-processing for transfer to the control system. Research results allow for improving the rehabilitation process through analysis and correction of patient movements.